Simplify dbh_do invocation, and only alias @_ when needed

[dbsrgits/DBIx-Class.git] / lib / DBIx / Class / Storage / DBI.pm

diff --git a/lib/DBIx/Class/Storage/DBI.pm b/lib/DBIx/Class/Storage/DBI.pm
index a458b09..19bc2bc 100644 (file)
--- a/lib/DBIx/Class/Storage/DBI.pm
+++ b/lib/DBIx/Class/Storage/DBI.pm
@@ -87,7 +87,6 @@ sub _determine_supports_join_optimizer { 1 };
 # class, as _use_X may be hardcoded class-wide, and _supports_X calls
 # _determine_supports_X which obv. needs a correct driver as well
 my @rdbms_specific_methods = qw/
-  deployment_statements
   sqlt_type
   sql_maker
   build_datetime_parser
@@ -795,11 +794,25 @@ sub dbh_do {
   return $self->$run_target($self->_get_dbh, @_)
     if $self->{_in_do_block} or $self->transaction_depth;
 
-  my $args = \@_;
+  my $cref = (ref $run_target eq 'CODE')
+    ? $run_target
+    : $self->can($run_target) || $self->throw_exception(sprintf (
+      'Can\'t locate object method "%s" via package "%s"',
+      $run_target,
+      (ref $self || $self),
+    ))
+  ;
+
+  # take a ref instead of a copy, to preserve @_ aliasing
+  # semantics within the coderef, but only if needed
+  # (pseudoforking doesn't like this trick much)
+  my $args = @_ ? \@_ : [];
+  unshift @$args, $self, $self->_get_dbh;
 
   DBIx::Class::Storage::BlockRunner->new(
     storage => $self,
-    run_code => sub { $self->$run_target ($self->_get_dbh, @$args ) },
+    run_code => $cref,
+    run_args => $args,
     wrap_txn => 0,
     retry_handler => sub { ! ( $_[0]->retried_count or $_[0]->storage->connected ) },
   )->run;
@@ -1746,9 +1759,7 @@ sub _dbh_execute {
 }
 
 sub _prefetch_autovalues {
-  my ($self, $source, $to_insert) = @_;
-
-  my $colinfo = $source->columns_info;
+  my ($self, $source, $colinfo, $to_insert) = @_;
 
   my %values;
   for my $col (keys %$colinfo) {
@@ -1778,7 +1789,9 @@ sub _prefetch_autovalues {
 sub insert {
   my ($self, $source, $to_insert) = @_;
 
-  my $prefetched_values = $self->_prefetch_autovalues($source, $to_insert);
+  my $col_infos = $source->columns_info;
+
+  my $prefetched_values = $self->_prefetch_autovalues($source, $col_infos, $to_insert);
 
   # fuse the values, but keep a separate list of prefetched_values so that
   # they can be fused once again with the final return
@@ -1786,7 +1799,6 @@ sub insert {
 
   # FIXME - we seem to assume undef values as non-supplied. This is wrong.
   # Investigate what does it take to s/defined/exists/
-  my $col_infos = $source->columns_info;
   my %pcols = map { $_ => 1 } $source->primary_columns;
   my (%retrieve_cols, $autoinc_supplied, $retrieve_autoinc_col);
   for my $col ($source->columns) {